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World champion in mental calculation 🏆
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The 14-Year-Old Human Calculator - Guinness World Records
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Cálculo Mental de Matemáticas 🧠📚⏰| Play Quiz de Cultura General
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#superclever #superznalac #mentalarithmetic #math #franchise #abacuslearning #abacus #education
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Secrets of Mental Math! 3 Tips to Up Your Mental Math Game
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14 year old human calculator breaks 6 world records in 1 day
